Light bar



FIG. 1 is a front side elevation view thereof;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a top side elevation view thereof;

FIG. 5 is a bottom side elevation view thereof;

FIG. 6 is a rear plan view thereof; and,

FIG. 7 is perspective view of a light bar showing my new design. 

The ornamental design for a light bar, as shown and described. 